Dr Rebecca Lawson
Blood pressure is one of those numbers that quietly ticks along in the background, doing its job without much fuss. It only becomes a problem when it stays too high for too long, and because it rarely causes obvious symptoms, plenty of people in the UK are living with readings they know nothing about. The encouraging part is that the habits which support healthy blood pressure are rarely dramatic. They are small, repeatable and, stacked together over months and years, genuinely powerful.
Why everyday habits carry so much weight
Around a third of adults in the UK have high blood pressure, and many only discover it during a routine appointment or a chance check at a pharmacy. Over time, raised pressure puts extra strain on the heart, blood vessels, kidneys and brain, which is why it matters even when you feel perfectly well.
Some risk factors are fixed: age, family history and genetics are not yours to negotiate. But diet, movement, sleep, alcohol and stress all respond to steady, unglamorous effort. The aim is not a perfect week, it is a slightly better average. A change you keep for a year beats a strict plan you abandon by February, so start with one or two adjustments rather than an overhaul.
Take a closer look at salt
Adults in the UK are advised to have no more than 6g of salt a day — roughly a level teaspoon. Most of us are above that, and here is the catch: around three-quarters of the salt we eat is already in the food we buy, not added at the table. That means the salt cellar is only part of the story.
- Read the labels. Look at the salt figure per 100g. As a rule, more than 1.5g of salt per 100g is high; 0.3g or less is low.
- Know the big contributors. Bread, cheese, processed meats, bacon, stock cubes, soy and pasta sauces, crisps, ready meals and takeaways add up quickly without tasting especially salty.
- Flavour without salt. Lemon juice, black pepper, garlic, chilli, herbs, spices and vinegars lift food beautifully. A squeeze of lemon on fish or vegetables does more than you would expect.
- Be careful with swaps. Lo salt alternatives often replace sodium with potassium, which is helpful for most people but not everyone — check with your GP or pharmacist first if you have kidney problems or take certain medicines.
Build meals around potassium and fibre
Potassium helps the body balance sodium and ease tension in blood vessel walls. Most adults would benefit from more of it, ideally from food rather than supplements. Beans and lentils, potatoes with the skin on, spinach, bananas, dried apricots, yoghurt, milk and salmon are all useful sources. If you have kidney disease or take medicines that affect potassium levels, such as ACE inhibitors, ARBs or potassium-sparing diuretics, speak to your GP before deliberately increasing it.
Fibre deserves a mention too. Aiming for around 30g a day through wholegrains, pulses, fruit and vegetables supports heart health more broadly, and it tends to crowd out the salty, ultra-processed options by keeping you fuller for longer.
Move in ways you can actually keep up
The UK guideline of 150 minutes of moderate activity a week sounds daunting until you break it down: around 20 to 30 minutes on most days. Moderate means you are breathing faster and can talk but not sing. A brisk walk counts. So does cycling to the shops, swimming, or a lively session of housework.
- Break up sitting. Stand and move for a minute or two every hour. Long, uninterrupted sitting is linked with higher blood pressure, and short movement snacks help.
- Add strength twice a week. Carrying shopping, stair climbs, squats, press-ups against the kitchen counter or resistance bands all count. Muscle work supports the whole cardiovascular system.
- Count the small stuff. Ten minutes here and there genuinely adds up, and even a short walk after a meal can take the edge off a post-meal rise.
Stress, sleep and the drinks in between
Short bursts of stress are normal. It is the ongoing, low-level grind — poor sleep, a busy mind, a glass of wine most evenings — that keeps pressure nudging upwards. Simple tools work better than grand plans: five to ten minutes of slow breathing, in for a count of four and out for six, can help settle the nervous system. Keeping consistent sleep and wake times, and a cool, dark bedroom, supports the overnight dip in blood pressure that your body needs.
On alcohol, sticking within 14 units a week, spread over three or more days, with a few alcohol-free days, is the current UK advice. Caffeine affects people differently, but if you are sensitive, keeping it to the morning is a sensible experiment. None of this replaces prescribed medication — relaxation is a support, not a substitute.
Check your numbers — at home or in a pharmacy
Many UK pharmacies offer free blood pressure checks without an appointment, which is a quick and easy way to get a baseline. For a fuller picture, a validated upper-arm home monitor is a worthwhile investment, and your pharmacist can advise on cuff size.
To get useful readings: sit quietly for five minutes with your back supported, feet flat and arm resting at heart level. Avoid caffeine, exercise and smoking for 30 minutes beforehand, and empty your bladder first. Take two readings a minute apart, morning and evening, for seven days, then discard the first day and average the rest.
One high reading is not a diagnosis — stress, a rushed morning or a cold can all skew it. But if home readings are consistently around 135/85 or above, or clinic readings around 140/90 or above, book an appointment with your GP. Write your numbers down and take them with you; a week of readings is far more informative than a single measurement. And never stop blood pressure medication without medical advice. If a reading is extremely high and you have chest pain, breathlessness, severe headache or vision changes, seek urgent help.
